Package io.smallrye.graphql.execution.datafetcher

Class AbstractAsyncDataFetcher<K,T>

java.lang.Object

io.smallrye.graphql.execution.datafetcher.AbstractDataFetcher<K,T>

io.smallrye.graphql.execution.datafetcher.AbstractAsyncDataFetcher<K,T>

Type Parameters:

K -

T -

All Implemented Interfaces:

graphql.schema.DataFetcher<T>, PlugableBatchableDataFetcher<K,T>, PlugableDataFetcher<T>, org.dataloader.BatchLoaderWithContext<K,T>

Direct Known Subclasses:

CompletionStageDataFetcher, UniDataFetcher

public abstract class AbstractAsyncDataFetcher<K,T>
extends AbstractDataFetcher<K,T>

Handle Async calls with Uni, base for Uni and CompletionState Datafetchers

Author:

Phillip Kruger (phillip.kruger@redhat.com)

Field Summary

Fields inherited from class io.smallrye.graphql.execution.datafetcher.AbstractDataFetcher

argumentHelper, batchLoaderHelper, errorResultHelper, eventEmitter, fieldHelper, measurementIds, metricsEmitter, operation, operationInvoker, type

Constructor Summary

Constructors

Constructor	Description
AbstractAsyncDataFetcher(io.smallrye.graphql.schema.model.Operation operation, io.smallrye.graphql.schema.model.Type type)

Method Summary

Modifier and Type	Method	Description
protected abstract io.smallrye.mutiny.Uni<List<T>>	handleUserBatchLoad(graphql.schema.DataFetchingEnvironment dfe, Object[] arguments)
protected abstract io.smallrye.mutiny.Uni<?>	handleUserMethodCall(graphql.schema.DataFetchingEnvironment dfe, Object[] transformedArguments)
protected <O> O	invokeAndTransform(io.smallrye.graphql.api.Context context, graphql.schema.DataFetchingEnvironment dfe, graphql.execution.DataFetcherResult.Builder<Object> resultBuilder, Object[] transformedArguments)
protected CompletionStage<List<T>>	invokeBatch(graphql.schema.DataFetchingEnvironment dfe, Object[] arguments)
protected <O> O	invokeFailure(graphql.execution.DataFetcherResult.Builder<Object> resultBuilder)

Methods inherited from class io.smallrye.graphql.execution.datafetcher.AbstractDataFetcher

get, load

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

AbstractAsyncDataFetcher

public AbstractAsyncDataFetcher(io.smallrye.graphql.schema.model.Operation operation,
 io.smallrye.graphql.schema.model.Type type)

Method Details

invokeAndTransform

protected <O> O invokeAndTransform(io.smallrye.graphql.api.Context context,
 graphql.schema.DataFetchingEnvironment dfe,
 graphql.execution.DataFetcherResult.Builder<Object> resultBuilder,
 Object[] transformedArguments)
                            throws Exception

Specified by:

invokeAndTransform in class AbstractDataFetcher<K,T>

Throws:

Exception

handleUserMethodCall

protected abstract io.smallrye.mutiny.Uni<?> handleUserMethodCall(graphql.schema.DataFetchingEnvironment dfe,
 Object[] transformedArguments)
                                                           throws Exception

Throws:

Exception

invokeFailure

protected <O> O invokeFailure(graphql.execution.DataFetcherResult.Builder<Object> resultBuilder)

Specified by:

invokeFailure in class AbstractDataFetcher<K,T>

invokeBatch

protected CompletionStage<List<T>> invokeBatch(graphql.schema.DataFetchingEnvironment dfe,
 Object[] arguments)

Specified by:

invokeBatch in class AbstractDataFetcher<K,T>

handleUserBatchLoad

protected abstract io.smallrye.mutiny.Uni<List<T>> handleUserBatchLoad(graphql.schema.DataFetchingEnvironment dfe,
 Object[] arguments)
                                                                throws Exception

Throws:

Exception